Fastening installation



Dec 23, 1930, M. F. CARR FASTENING INSTALLATION Original Filed Jan. 1926 Inve 72/202": MOZQZFUQ WW, 2) 1/ i 7 y fliizys.

' Patented Dec. 23, 1930 unmen. STA

QM S SEQABR;

OF LEXINGTON, MASSACHUSETTS, ASSIG'NOR, BY MESNE ASSIGNMENTS,

, TQ 'UTIIT-Ep-CABR TASTENER CORPORATION, or CAMBRIDGE, MASSACHUSETTS, A I CORPORATION or MASSACHUSETTS FASTENING INSTALLATION Application filed January 16,1926, Seri This invention :aims to provide improvements in fastening installations wherein a LSeparable fastenerelement issecured to a rigid support.

p In the drawings, which illustrate a preferred embodiment of my invention r I Figure lis a view showing the support and l resilient element in cross-section with the fasi tening element about to be secured thereto;

ing the separable fastener e the; support Fig. 2 is a section partly in elevation showelement secured to i-Fig. 3 includes side and an end elevation lof theresilient locking element; and

;. Fig.4; includes a side and an end elevation I of a. preferred form of stud element.

.; xlReferring to they drawings, I have illustrated asimple and effective manner of installing a. member of a separable fastener to a relatively thin rigi d supporti 'Theinstallation shownincludes astud member 1, which may be of any suitable construction, an'atgtaching element; 2-forming part, of the stud l securing the stud to the erture 5a,

unit, a support 3 which may be of wood, sheet metal or ganyrrigid material, and a resilient locking element the attaching element 2 to provide means for support.

I The support 8 may be the sheet metal side of a vehicle body and is provided with a depressed portion 5 in which is formed an apas shown in Figs. 1 and 2.

' The resilient locking element 4: is pressed from a single piece'of metal and has a base 6 from which. arises a resilient portion slightly larger in diameter at the outer endthan at the end adjacent to the base. Resihency s provided by slits 7 which divide the resllient portion into-contractible and expansible fingers 8 having inbent extensions 9 ternnnating about an aperture 10 in the end of the resilient portion,

as shown in Figs. 1 and 3. The stud member illustrated is pressed from a single piece of metal and has a base 11 which encloses the head 12 of the attaching element 2 to secure the two parts together.

of any suitable shape which will engage and of the inbent portions 9 either by turnlng or by a straight push of the stud relative thereof one edge are preferably staggered place by l for cooperating with i against the thereby concealingit. When the stud is thus secured to thesnpport, the free ends of the ininner face of stud from the support by turning.

al No. 81,871. Renewed May 24, 1929.

having a narrow shank portion provided with a tapered end 13. The opposed narrow edges are provided with notches 14. The notches relative to the notches of the other edge. The teeth 15 between the notches are preferably shaped like ratchet teeth so that they may passbetween the inbent portions 9 by a straight push on the stud, but locked against movement by a pull in the reverse direction.

In asseniblingthe stud 1 with the support 3, the locking element 4 is first engaged with the Supportby snapping the enlarged portion of the fingers 8 through the aperture 5a. The base 6 of the locking element fits into the depression 5 (Fig. 1) and lies flush with the outer surface of the support 3. The stud may beeasily and quickly secured in pressing it toward the locking element 4 so that the tapered end of the attaching element 2 may. enter the aperture 10 and engage the inbent portions 9. As the element 2 is forced between the inbent portions 9, the lingers, 8 are expanded about the inner" 1 3. Thestud should be pushed toward the support until the base 11 of the stud seats base 6 of the locking element 4,

bent portions 9 enter the notches and prevent separation of the-stud from the support when an outward pull is exerted thereupon, as when asocket is being disengaged from the stud.

, The point at which the ends of the inbent portions 9 engage the attaching element 2 is preferably at a substantial distance from the the support 3, thereby to assist inholding the stud rigid as shown in Fig. 2.

By arranging the notches so that they are staggered on opposite. edges, they act as a sort of thread and-permit separation of the the stud relative thereto, thereby permitting the attaching element 2 to be unscrewed from the locking element l.

; disengagement from a cooperating snap fasferred embodiment of my invention, it will be understood that changes involving omission, substitution, alteration and reversal} of parts, and even changes in the mode of opera tion,may be made without departing from the scope of my invention, which is best de-- fined in the following claims.

Claims:

1. In a snapfastener installation, a support presenting an aperture, a contractible and expansible part entered into said aperture and a separable snap fastener element 5 having means for cooperative separable en-' gagement with and disengagementfr'om another snap fastener element by movement to- V ward and away from each other, said snap fastener element having an attaching portion for engagement with said ,contractible and. expansible part to expand and lock it to said support by direct axial movement-relative to the contractible and expansible part and in-' terlojckingmeans between the attaching portion and said part for holding said fastener element in position against said support, 2. Ina snapfastener installation, a rigid support, a contractible and expansible part snapped through an aperture in saidsupport land-presenting at its inner'end a plurality of inwardly bent portions surrounding 'an apertur'e,a separable fastener stud having means for separable fastening engagement with and tener-socket by'movement toward and away I an attachmg portion adapted to be forced befrom each other, said fastener stud having tween said i'mvardlybent portions by direct axial movement to eXpand'an'd lock said part to the support and a series of notches pre-' sented by said attaching portion for receiv-' ing the ends-of saidinwardly bent portions to secure the stud in assembly with the support 7' through said contractible and expans'ible part. .7

3. In a snap fastener installation, a snap c fastener stud member having means for separable fastening engagement with and disen- 7 said stud member to said 1 said attaching element presenting thread-like Y gagement from a cooperating fastener socket by 'movement toward and away froineac h other, said-stud member having an attaching element extending therefrom, a stud support, locking means attached to the stud support with by axial movement relative thereto while permitting the stud to be separated therefrom by rotation of the stud member relative thereto to disengage. the attaching element.

4. In a snap fastenerinstallation, a support presenting an aperture surrounded by a Wal1,-a snap fastener stud unit having a head and aneck forsnap fastening engagement Wlth and dlsengagement from a cooperating snap fastener socket by movement -toward andaway from each other, laterally Qexpansi- I ble means extending through the aperture in the support and means provided as a part of the stud unit and adapted to expandthe expansible means" against the wall surrounding the aperture in the support by direct axial movement relative to the expansible means to secure the stud unit in' fixed 'rel'athereby tion to the support.

port presenting an aperturesurroundedby a wall, a snap fastener stud unit havinga head 5. In a snap fastenerinstallation, a supand a neck for snap fastening engagement with and disengagement from a cooperating snap'fastener socket by movement toward and away from each other, a base, a generally cup-shaped attaching portion extending I from adjacent to thebase throughthe aperture in the support, saidcup-shaped attach ing portion having a number of laterally yieldable' fingers and means provided asa part of the stud unit and adapted to'be 7 pressed toward the bottom of the cup-shaped v portionthereby to expandsaid fingers and secure the stud unit in fiX'ed'relation to the support."

In testimony whereof, I have signed my V nameto this specification. p c MOSES CARR;

no t

and having resilient. finger portions presenti A ed at the inner side ofthe stud support for receiving said attaching element to secure the stud support and interlocking meansfor engagement with the free ends of the said finger portionsto permit engagement of the attaching elementthere- I 

